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Finding the Fourth Proportional to 168,758.40, 253,137.60 and 68,885.40

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Solution

The fourth proportional to 168,758.40, 253,137.60 and 68,885.40 is: 103,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,758.40 : 253,137.60 = 68,885.40 : x
  2. Step 2: Convert to fraction form
    168,758.40/253,137.60 = 68,885.40/x
  3. Step 3: Cross multiply
    168,758.40x = 253,137.60 × 68,885.40
  4. Step 4: Simplify right side
    168,758.40x = 17,437,484,831.04
  5. Step 5: Solve for x
    x = 17,437,484,831.04/168,758.40
  6. Step 6: Final answer
    x = 103,328.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.